Display device driving method

Details Display device driving method Display device driving method

1996-08-28

1997-10-14

Wu, Xiao

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345147, 345202, G09G 336

Patent

active

056777043

ABSTRACT:
Frame rate modulation is effected in which image data, which expresses a density of one dot by 4-bit dot data, is converted into a plurality of frame data, which express a density of one dot by 3 bits, so that the plurality of the frame data are sequentially displayed on the LCD. In the above conversion, the high order 3 bits of the dot data are extracted and made into data of one dot of each frame. In a case in which the least significant bit of the first dot data is 1 and the most significant bit is 0, 1 is added to a corresponding portion of the respective frame data. In a case in which the least significant bit of the dot data is 0 and the most significant bit is 1, 1 is subtracted from a corresponding portion of the respective frame data. In accordance with the above description, the image data is converted into the frame data as shown in Table 2, and the sum (apparent densities) of the plurality of converted frame data always changes in accordance with the changes in the dot data.

REFERENCES:
patent: 4921334 (1990-05-01), Akodes
patent: 5313196 (1994-05-01), Tanaka et al.
patent: 5424755 (1995-06-01), Lucas et al.

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